This isn't a trunk rack, but if you've got a hitch on your car, you can have this rack.
Will carry 2 BikeE's and a regular bike. Found all the parts at JCWhitney. I still had to raise the height of the wheel rungs, as the my CT XL wouldn't fit comfortably within the 5' wide box.
Cost was $130 for the rack, $30 for the wheel rungs. Plus, I can use this rack for more things than carrying the bikes!